CN109774908A

CN109774908A - Hybrid propulsion for ships

Info

Publication number: CN109774908A
Application number: CN201910090874.3A
Authority: CN
Inventors: 陈立军; 沈中祥; 顾佳豪; 杨国德; 石天赐; 朱小虎
Original assignee: Jiangsu Maritime Institute
Current assignee: Jiangsu Maritime Institute
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2019-05-21

Abstract

The present invention provides a kind of hybrid propulsion devices suitable for ship, multiple admission lines are arranged symmetrically at left and right sides of captain direction, each admission line tail portion is connected with 1 gas spout, each gas spout direction is in the same direction with ship tail portion spout, each gas spout is built in water inlet line, each admission line is vertically placed in hull, the upper end of each admission line is perpendicular to deck and is upward through deck, tail portion spout is placed on ship tail portion and closely connect with the tail portion of water inlet line, and a turbine is arranged at the upper orifice of each water inlet line.Hybrid propulsion device technique provided by the invention suitable for ship reacts the propulsion modes such as Jet propulsion and jet-propulsion compared to propeller propulsion, hydraulic jet propulsion, metal/water, has many advantages.The Push Technology is not influenced using high pressure gas as power source by cavitation, cavitation corrosion, has good runnability under high speed operation environment.

Description

Hybrid propulsion device suitable for ship

Technical field

The invention belongs to propulsion device fields, and in particular to a kind of hybrid propulsion device suitable for ship.

Background technique

In recent years, with the rapid development of Optimal Structure Designing and drag reduction technology, the route speed on high-performance naval vessel is obtained It greatly improves, while also bringing new problem and challenge, i.e., traditional underwater propulsion unit is run under high speed operation environment Performance is poor.General propeller propulsion is limited in the sail body speed of service within 50 sections, more than after the value, due to liquid-containing air The influence of change will lead to the thrust of turbomachine and propulsive efficiency declines rapidly, and cavitation corrosion is more tight to the destruction of blade Weight, therefore the underwater propulsion unit for being suitable for high-speed cruising environment is developed as a kind of urgent need.

Summary of the invention

1, technical problem to be solved:

Traditional underwater propulsion unit on existing naval vessel runnability under high speed operation environment is poor.General propeller promotes handle The sail body speed of service is limited within 50 sections, after speed is more than 50 sections, since the influence of liquid cavitation will lead to turbine The thrust and propulsive efficiency of tool decline rapidly, and cavitation corrosion is more serious to the destruction of blade.

2, technical solution:

In order to solve problem above, the present invention provides a kind of hybrid propulsion devices suitable for ship, along captain direction or so Two sides are arranged symmetrically multiple admission lines, and it further includes water inlet pipe that each admission line tail portion, which is connected with a gas spout, Road, tail portion spout, each gas spout direction is in the same direction with ship tail portion spout, and each gas spout is built in In water inlet line, each admission line is vertically placed in hull, and the upper end of each admission line is perpendicular to first Plate is simultaneously upward through deck, and the water inlet line is placed on the straight line where the tailing axle of traditional propeller and before and after water inlet line Through entire hull, the tail portion spout is placed on ship tail portion and closely connect with the tail portion of water inlet line, each water inlet pipe One turbine is set at the upper orifice in road.

Admission line described in every side has 3.

Three gas spouts of every side are disposed respectively on different horizontal planes, are put by aftermost gas spout Set the top place in water inlet line, the gas spout close to bow is placed on lower part in water inlet line, and the two it Between gas spout be placed on the middle part in water inlet line

Radius round tube identical with air inlet pipe narrow pipe radius is equipped in the gas spout, by after its section tight seal Multiple small nozzles are installed thereon, the small nozzle is circumferentially tangential in the angle of the distribution annular in shape of its section and each small nozzle The direction of gradient inwardly, the small nozzle is in the same direction with ship tail portion spout.

The small nozzle is 6.

The water inlet line is divided into upper and lower ends, and upper end is wide pipe, and lower end is narrow pipe, narrow pipe with it is close at width interface tube Connection.

The part that each admission line is higher than deck connects one by right-angle elbow pipe interface at nozzle and is parallel to captain The round tube in direction, nozzle is towards fore direction, and admission line the latter air inlet that pipe diameter is identical, ipsilateral as wide pipe diameter Mouth is higher than previous air inlet, and nozzle is closely connect with nozzle junction.

Ipsilateral admission line the latter air inlet is higher by the height of 1/2 wide pipe diameter than previous air inlet.

The top outer diameter pipe that the rotary shaft of the turbine is parallel to admission line is placed vertically.

The caliber of the water inlet line is rearwardly gradually increased by small by this one end of water inlet, fast when close to tail portion spout Speed is in the same size with tail portion spout caliber by being reduced to greatly.

3, the utility model has the advantages that

Hybrid propulsion device technique provided by the invention suitable for ship is compared to propeller propulsion, hydraulic jet propulsion, metal/water The propulsion modes such as Jet propulsion and jet-propulsion are reacted, there are many advantages.The Push Technology using high pressure gas as power source, It is not influenced by cavitation, cavitation corrosion, there is good runnability under high speed operation environment.

Detailed description of the invention

Fig. 1 is side view of the invention.

Fig. 2 is top view of the invention.

Fig. 3 is the profile diagram of gas spout of the present invention.

Fig. 4 is the top view of gas spout of the present invention.

Specific embodiment

Below by attached drawing, the present invention is described in detail.

The present invention provides a kind of hybrid propulsion devices suitable for ship, are arranged symmetrically at left and right sides of captain direction more A admission line 1, each 1 tail portion of admission line are connected with 1 gas spout 3, further include water inlet line 5, tail portion spray Mouthfuls 4, each gas spout 3 is towards in the same direction, each gas spout 3 is built in into water with ship tail portion spout 4 In pipeline 5, each admission line 1 is vertically placed in hull, and the upper end of each admission line 1 is perpendicular to deck And it is upward through deck, the water inlet line 5 is placed on the straight line where the tailing axle of traditional propeller and 5 front and back of water inlet line Through entire hull, the tail portion spout 4 is placed on ship tail portion and closely connect with the tail portion of water inlet line 5, each water inlet One turbine 2 is set at the upper orifice of pipeline 1.

It allows more gases to be inhaled into from admission line 1 when 2 high speed rotation of turbine, is inhaled into gas from gas spout 3 Quickly spray；And the power and gas of ship advance are given while the sucking gas of admission line 1 due to sucking thrust The ejection of 3 high pressure of body spout is sufficiently merged with water flow, finally just constitutes ship from the propulsive thrust that the injection of ship tail portion spout 4 is formed The major impetus source of advance.

Admission line 1 described in every side has 3 in the present invention.

As depicted in figs. 1 and 2, three gas spouts 3 of every side are disposed respectively on different horizontal planes, close to ship The gas spout of tail is placed on top place in water inlet line, and the gas spout close to bow is placed in water inlet line on the lower Place, and the gas spout between the two is placed on the middle part in water inlet line.The placement of 3 position of gas spout can have Effect avoids previous spout to inhibition caused by the injection of the latter spout.

As shown in Figure 3 and Figure 4, it is equipped with radius round tube identical with air inlet pipe narrow pipe radius in the gas spout 3, Multiple small nozzles will be installed on it, the small nozzle is in its section distribution annular in shape and each small after its section tight seal The angle of nozzle is circumferentially tangential to tilt 3 degree inwardly, and the direction and ship tail portion spout 4 of the small nozzle are in the same direction.The gas The design of body spout 3 and location arrangements advantage are: gas spout 3 can allow gas more quickly, adequately to merge with water flow.

The medium and small nozzle of the present invention is 6.

As shown in Figure 1, the water inlet line 1 divides for upper and lower ends, upper end is wide pipe, and lower end is narrow pipe, narrow pipe and wide It is closely connected at interface tube.When being inhaled into gas leniently pipe entering the lesser narrow pipe of caliber, gas pressure increases, finally with higher Pressure quickly sprayed from the gas spout 3 of narrow pipe tail portion；And it is given due to sucking thrust while width pipe sucking gas The power and gas for giving ship advance spray after narrow pipe is pressurized from gas spout high pressure sufficiently to be merged with water flow, finally from ship The propulsive thrust that the injection of oceangoing ship tail portion spout 4 is formed just constitutes the major impetus source of ship advance.

The part that each admission line 1 is higher than deck connects one by right-angle elbow pipe interface at nozzle and is parallel to captain The round tube in direction, nozzle is towards fore direction, and pipe diameter is identical as wide pipe diameter, ipsilateral 1 the latter of admission line into Port is higher than previous air inlet, and nozzle is closely connect with nozzle junction.Design is primarily to prevent the rainy day in this way Rainwater causes the water inlet of turbine 2 to be broken down from air inlet inflow, and previous air inlet openings are to the latter air inlet when reducing air-breathing Caused by inhibition, and precession before a part is provided for ship while sucking gas due to sucking thrust Power.

For better effect, ipsilateral 1 the latter air inlet of admission line is higher by 1/2 than previous air inlet The height of wide pipe diameter.The top outer diameter pipe that the rotary shaft of the turbine 2 is parallel to admission line 1 is placed vertically.

The caliber of the water inlet line 5 is rearwardly gradually increased by small by this one end of water inlet, when close to tail portion spout 4 It is consistent with 4 pipe diameter size of tail portion spout by being reduced to greatly rapidly.Water inlet line 5 is also simultaneously mixing wastewater with air pipeline, it is placed on Entire hull is run through on straight line where the tailing axle of traditional propeller and front and back, and water inlet line 5 is all tight with the perforative part of institute Close connection；Caliber is rearwardly gradually increased by small by this one end of water inlet, and caliber is rapidly by reducing greatly when close to tail portion spout To in the same size with tail portion spout caliber；Ship advance when, water flow from the water inlet pipe nozzle of place foremost part of ship flow into from The high pressure gas that each gas spout sprays at the uniform velocity flow in water inlet line after adequately merging, most afterwards through ship tail portion Pressure increases sharply to which high-voltage high-speed sprays when spout.The design in this way of water inlet line 5 can alleviate air-water mixture to tube wall Pressure, to guarantee that air-water mixture at the uniform velocity flows in water inlet line.

Tail portion spout 4 is placed on ship tail portion and is closely connect with the tail portion of water inlet line 5.When air-water mixture from Tail portion spout 4 controls the direction of ship advance by 6 left and right adjusting of rudder blade after spraying.

Although the present invention has been described by way of example and in terms of the preferred embodiments, they be not it is for the purpose of limiting the invention, it is any ripe This those skilled in the art is practised, without departing from the spirit and scope of the invention, can make various changes or retouch from working as, therefore guarantor of the invention Shield range should be subject to what claims hereof protection scope was defined.

Claims

1. A hybrid propulsion device suitable for ships, characterized in that: a plurality of air intake ducts (1) are symmetrically arranged on the left and right sides along the length of the ship, and the tail of each air intake duct (1) is connected with a gas The nozzle (3) also includes a water inlet pipe (5) and a rear nozzle (4), each of the gas nozzles (3) is oriented in the same direction as the nozzle (4) at the stern of the ship, and each of the gas nozzles (3) ) is built in the water inlet pipe (5), each said air inlet pipe (1) is vertically placed in the hull, and the upper end of each said air inlet pipe (1) is perpendicular to the deck and passes upward through the deck, The water inlet pipe (5) is placed on a straight line where the tail shaft of the traditional propeller is located, and the water inlet pipe (5) runs through the entire hull front and rear. The tails of the water inlet pipes (1) are closely connected, and a turbine (2) is arranged at the upper nozzle of each water inlet pipe (1).

2. The hybrid propulsion device suitable for ships according to any one of claim 1, characterized in that: there are three air intake ducts (1) on each side.

3. The hybrid propulsion device suitable for ships according to claim 1 or 2, characterized in that: the three gas nozzles (3) on each side are respectively placed on different horizontal planes, and the gas nozzles near the stern are placed In the upper part of the inlet pipe, the gas jets near the bow are placed lower in the inlet pipe, and the gas jets in between are placed in the middle of the inlet pipe.

4. The hybrid propulsion device suitable for ships according to claim 3, characterized in that: the gas nozzle (3) is provided with a circular pipe with the same radius as the narrow pipe of the intake pipe, and the cross section of the gas nozzle (3) is tightly sealed. A plurality of small nozzles are installed on it, the small nozzles are distributed in an annular shape in their cross-section, and the angle of each small nozzle is inclined 3 degrees inward along the circumferential tangential direction, and the orientation of the small nozzles is the same as that of the spout at the stern of the ship (4 )In the same direction.

5 . The hybrid propulsion device suitable for ships according to claim 4 , wherein the number of the small nozzles is 6. 6 .

6. The hybrid propulsion device suitable for ships according to any one of claims 1-2 and 4-5, wherein the water inlet pipe (1) is divided into upper and lower ends, and the upper end is a wide pipe , the lower end is a narrow tube, and the narrow tube and the wide tube interface are closely connected.

7. The hybrid propulsion device suitable for ships according to any one of claims 1-2, 4-5, characterized in that: the part of each air intake duct (1) higher than the deck passes a right angle at the nozzle The elbow joint is connected to a round pipe parallel to the length of the ship, the nozzle is facing the bow direction, and the diameter of the pipe is the same as the diameter of the wide pipe. High, the nozzle and nozzle connection are tightly connected.

8. The hybrid propulsion device suitable for ships according to claim 7, characterized in that: the rear air inlet of the air inlet duct (1) on the same side is 1/2 wider than the previous air inlet The height of the tube diameter.

9. The hybrid propulsion device suitable for ships according to any one of claims 1-2, 4-5, and 8, characterized in that: the rotation axis of the turbine (2) is parallel to the intake duct (1) The upper OD tube is placed vertically.

10. The hybrid propulsion device suitable for ships according to any one of claims 1-2, 4-5, and 8, characterized in that: the diameter of the water inlet pipe (5) is from the end of the water inlet to the direction of the water inlet. The tail gradually increases from small, and when it approaches the tail nozzle (4), it rapidly decreases from large to the same size as the diameter of the tail nozzle (4).